Panasonic KX-TD308 Installation Manual page 54

2.3.8 Printer and PC Connection 2.3.8 Printer and PC Connection
Serial Interface (RS-232C) Signals
Programming References
Feature References
Frame Ground: FG
Connects to the unit frame and the earth ground conductor of the
AC power cord.
Transmitted Data: SD (TXD) ............................................(output)
Conveys signals from the unit to the printer. A "Mark" condition is
held unless data or BREAK signals are being transmitted.
Received Data: RD (RXD) .................................................(input)
Conveys signals from the printer.
Request to Send: RS (RTS)................................................(output)
This lead is held ON whenever DR (DSR) is ON.
Clear To Send: CS (CTS)...................................................(input)
An ON condition of circuit CS (CTS) indicates that the printer is
ready to receive data from the unit. The unit does not attempt to
transfer data or receive data when circuit CS (CTS) is OFF.
Data Set Ready: DR (DSR)................................................(input)
An ON condition of circuit DR (DSR) indicates the printer is ready.
Circuit DR (DSR) ON does not indicate that communication has
been established with the printer.
Signal Ground: SG
Connects to the DC ground of the unit for all interface signal.
Data Terminal Ready: ER (DTR) .....................................(output)
This signal line is turned ON by the unit to indicate that it is ON
LINE. Circuit ER (DTR) ON does not indicate that communication
has been established with the printer. It is switched OFF when the
unit is OFF LINE.
Data Carrier Detect: CD (DCD) .......................................(input)
The ON condition is an indication to data terminal (DTE) that the
carrier signal is being received.
Section 4, System Programming
[800] SMDR Incoming/Outgoing Call Log Printout
[801] SMDR Format
[802] System Data Printout
[806] Serial Interface (RS-232C) Parameters
Section 3, Features
Station Message Detail Recording (SMDR)
Installation 2-25